If a dinosaur died two billion years ago, and the earth's stratosphere built up over that carcass, and today on a wildcat drilling venture the drill bit passes through that decayed carcass at 8,943 feet, what will be the name of that stratosphere? And what will be the pH of that soil contained in the drill bit?

If a dinosaur died two billion years ago, and the earth's stratosphere built up over that carcass, and today on a wildcat drilling venture the drill bit passes through that decayed carcass at 8,943 feet, what will be the name of that stratosphere? And what will be the pH of that soil contained in the drill bit?